Karma MTN-Bass

Karma MTN-Bass is Karma’s take on the other green box from Ibanez, the  Mostortion MT10 Mosfet Distortion and a special version for bass guitar.

Over the last few years, the original Mostortion MT10 Mos-Fet Distortion has gained popularity among tone hounds, and the price has gone up to near $400. This MTN-Bass mimics the same controls found on the Mostortion and uses the same CA3260 IC that’s found in the original.

The pedal gives you just the right amount of compression and dirt without sacrificing feel. The 3-band EQ is wildly interactive and really requires minimal tweaking. Simply start at noon and season to taste. The pedal is also an excellent clean boost. It has plenty of full-range response and is incredibly reactive to dynamics.

The pedal has the same great circuit as the MTN-10, with 8 tweaks to make it bass-friendly and is a worthy torchbearer that surpasses the original in build quality, price, and availability. The distortion is powered by a 9 volts standard Boss-style power supply (sold separately).

Karma MTN-Bass demo video